diabolic cats

Yes he does, Lunatic Psyker sounds like a fax machine pick up, Mastermind when you hear him scream he sounds the 90′s dial up modem.

Diabolic Esper on the other hand, he doesn’t scream, he flashes like the current day dialup modem. (maybe broadband??)

Perhaps in the past, he was something to be feared by others. A threat not only to mankind, but to multiple dimensions. His power is nothing to be unconcerned by.
However, through his years of being a part of the El Search Party, he seems to have stabilized more; at this point in time, he is no longer a threat to me. I still keep my guard up.
Oh, we also share a lab.

Bonus:

…What? If he is taking care of it, I have nothing to worry about, right?